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hrp0089p1-p159 | Growth & Syndromes P1 | ESPE2018

Does X-Chromosome Gene Dosage Determine Growth and Phenotypic Features in Turner Syndrome with 45,X/46,XX Mosaicism on Standard Karyotyping? A Cross-Sectional Analysis of the French National Rare Disease Network Database

Fiot Elodie , Zenaty Delphine , Pick Paul , Boizeau Patricia , Haignere Jeremy , Dos Santos Sophie , Christin-Maitre Sophie , Carel Jean-Claude , Leger Juliane , Turner Syndrome Study Group French

Background: Turner Syndrome (TS) with a 45,X phenotype is generally more severe than TS with mosaicism, but the potential role of the degree of mosaicism in modulating TS phenotype has never been investigated. We assessed the impact of various degrees of 45,X/ 46,XX mosaicism on phenotypic features in a cohort of TS patients.Method: We analysed a cohort of TS with 45,X/ 46,XX mosaicism (percentage mosaicism from peripheral blood lymphocytes, known in <em...

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ESPE Abstracts

Does X-Chromosome Gene Dosage Determine Growth and Phenotypic Features in Turner Syndrome with 45,X/46,XX Mosaicism on Standard Karyotyping? A Cross-Sectional Analysis of the French National Rare Disease Network Database

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